Index: libinotifytools/src/inotifytools.cpp
--- libinotifytools/src/inotifytools.cpp.orig
+++ libinotifytools/src/inotifytools.cpp
@@ -36,7 +36,7 @@
 
 #include "inotifytools/inotify.h"
 
-#ifdef __FreeBSD__
+#ifdef __OpenBSD__
 struct fanotify_event_fid;
 
 #define FAN_EVENT_INFO_TYPE_FID 1
